US20130137992A1 - Pain-relief device - Google Patents
Pain-relief device Download PDFInfo
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- US20130137992A1 US20130137992A1 US13/750,477 US201313750477A US2013137992A1 US 20130137992 A1 US20130137992 A1 US 20130137992A1 US 201313750477 A US201313750477 A US 201313750477A US 2013137992 A1 US2013137992 A1 US 2013137992A1
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- laser light
- pain
- relief device
- light source
- irradiation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/0613—Apparatus adapted for a specific treatment
- A61N5/0619—Acupuncture
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H39/00—Devices for locating or stimulating specific reflex points of the body for physical therapy, e.g. acupuncture
- A61H39/06—Devices for heating or cooling such points within cell-life limits
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/01—Constructive details
- A61H2201/0119—Support for the device
- A61H2201/0153—Support for the device hand-held
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/10—Characteristics of apparatus not provided for in the preceding codes with further special therapeutic means, e.g. electrotherapy, magneto therapy or radiation therapy, chromo therapy, infrared or ultraviolet therapy
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/50—Control means thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/50—Control means thereof
- A61H2201/5023—Interfaces to the user
- A61H2201/5025—Activation means
- A61H2201/5028—Contact activation, i.e. activated at contact with a surface of the user to be treated
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/50—Control means thereof
- A61H2201/5023—Interfaces to the user
- A61H2201/5043—Displays
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/50—Control means thereof
- A61H2201/5058—Sensors or detectors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0635—Radiation therapy using light characterised by the body area to be irradiated
- A61N2005/0643—Applicators, probes irradiating specific body areas in close proximity
- A61N2005/0644—Handheld applicators
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- A—HUMAN NECESSITIES
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- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0658—Radiation therapy using light characterised by the wavelength of light used
- A61N2005/0659—Radiation therapy using light characterised by the wavelength of light used infrared
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- A—HUMAN NECESSITIES
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- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/067—Radiation therapy using light using laser light
Definitions
- the present invention relates to a pain-relief device which applies a laser light to relieve pain in painful areas.
- FIG. 9 is a block diagram of a conventional pain-relief device which is disclosed in Patent Document 1.
- a driving circuit is denoted by 200
- a power supply unit is denoted by 201
- a consecution/pulse drive selecting switch are denoted by 210 and 220
- a function generator is denoted by 230
- amplifiers are denoted by 231 and 233
- constant current supply units are denoted by 240 and 250
- a red semiconductor laser is denoted by 260
- a green semiconductor laser is denoted by 270
- light fiber acupunctures are denoted by 280 a and 280 b
- a painful area or a meridian is denoted by 290 .
- the light fiber acupunctures 280 a and 280 b have been developed to produce both a metal acupuncture function of Eastern acupuncture and a laser light irradiation.
- a thin metallurgical coating is applied to a clad of the light fiber whose jacket or trunking has been removed and a surface fabrication is applied at a predetermined angle to its end.
- the consecution mode or the pulse mode is selected at the consecution/pulse drive selecting switches 210 and 220 by way of control signals 212 and 222 .
- the red semiconductor laser 260 or the green semiconductor laser 270 produces the consecutive oscillation or the pulse oscillation to emit laser light by the functions of the function generator 230 , the amplifiers 231 and 233 , and the constant current supply units 240 and 250 .
- the laser light emitted by the red semiconductor laser 260 or the green semiconductor laser 270 irradiates the painful area or the meridian 290 through the light fiber acupunctures 280 a and 280 b.
- An existing pain-relief device requires expert knowledge of Eastern acupuncture of a user, such as meridians and acupuncture points. Accordingly, there has been a problem that it is difficult for ordinary people to use it to relieve pain in painful areas.
- Non-invasive pain-relief device such as the one disclosed in Japanese Patent Application Laid-Open No. 2004-329474 (Patent Document 2) as well as the invasive pain-relief device.
- Laser acupuncture which contributes to effective treatment by collecting laser light into acupuncture points to apply a stimulus by means of a light collecting mechanism or the like also requires expert knowledge of acupuncture of a user, making it difficult for ordinary people to use it.
- the present invention allows one to use the pain-relief device without expert knowledge of acupuncture so that ordinary people (i.e. an acupuncture inexpert) can use it to relieve pain in painful areas without difficulty.
- Patent Document 1
- Patent Document 2
- the pain-relief device includes some mechanisms as follows: the device comprising a body and a head extending from the body; a laser light source mechanism located on the head which emits heat-producing laser light; an irradiation opening which irradiates the laser light emitted from the laser light source mechanism to a predetermined part; an image-taking mechanism located on the head which takes a picture of the area being irradiated with the laser light irradiated from the irradiation opening; an image display mechanism which displays the image of the area taken by said image-taking mechanism; and a planoconcave lens attached to the head and extending over said irradiation opening.
- the area which has been imaged by said image-taking mechanism is irradiated with said laser light diffused by said planoconcave lens.
- the pain-relief device may further include a control mechanism which controls the laser light source mechanism based on control-relevant information of the laser light source mechanism, and a control information presenting mechanism which presents the control-relevant information to the user.
- the pain-relief device may further include an emission request mechanism which is utilized for the laser light emission from the laser light source mechanism.
- the laser light source mechanism emits the laser light when the emission request mechanism is used.
- the image-taking mechanism may be further provided with an illuminating mechanism which illuminates the target areas of the laser light irradiation.
- the pain-relief device further includes a touch sensor mechanism located between the irradiation opening and the edge of the head in a protruding manner to sense a contact with the target area of the laser light irradiation and a control mechanism which controls the laser light source mechanism to emit the laser light only while the touch sensor mechanism is contacting the target area of the laser light irradiation.
- the pain-relief device further includes a light diffusion mechanism which has a negative refracting power and irradiates the painful areas with the laser light emitted from the laser light source mechanism.
- the laser light source mechanism may be a semiconductor laser.
- the light source mechanism may emit the laser light to the painful area within a range of 0.4 W/cm 2 or less in power.
- the light source mechanism may emit the laser light to the painful area within a range from 600 nm to 1000 nm in wavelength.
- the present invention is provided with the laser light source mechanism, it becomes possible to relieve the pain of a bruise, sprain, shoulder stiffness, backache or the like by irradiating the painful area with the heat-producing laser light so as to warm the painful area and to promote blood circulation.
- the target area of the laser light irradiation imaged by the image-taking mechanism is to be irradiated with the laser light, making it possible to roughly narrow the area being laser-irradiated by checking anomalies within the painful area such as reddening, roughness, and/or dryness of skin or the like. Accordingly, it becomes possible for ordinary people without expert knowledge of acupuncture to provide a treatment to relieve pain without difficulty.
- planoconcave lens attached to the head and extending over the irradiation opening, it becomes possible to diffuse the laser light widely to irradiate the painful area and the surrounding area, resulting in the improvement in efficiency of the irradiation. It also becomes possible to irradiate the painful area with the uniform laser light, producing the reduction of the unevenness of the irradiation. Moreover, it also becomes possible to irradiate the painful area with the laser light having a mild laser light power.
- the present invention may further include a control mechanism which controls the laser light source mechanism based on control-relevant information of the laser light source mechanism and a control information presenting mechanism which presents the control-relevant information to the user, the user can get a handle on the operation i.e. the improvement of the operability of the pain-relief device can be achieved, in addition to the efficacy achieved without the control mechanism.
- the present invention may further include an emission request mechanism which is utilized for the laser light emission from the laser light source mechanism and the laser light source mechanism emits the laser light when the emission request mechanism is used, it becomes possible to control emission/non-emission of the laser light without difficulty, resulting in the improvement of the operability of the pain-relief device. Since the laser light is not emitted unless the emission request mechanism is used, an erroneous irradiation of the laser light can be prevented so as to avoid accidents causing blindness or the like, resulting in the safety enhancement of the pain-relief device.
- the image-taking mechanism of the present invention may further include an illuminating mechanism which illuminates the target area of the laser light irradiation, it becomes possible to reliably take a picture in bright light even when there is insufficient light volume, resulting in the capability of checking anomalies within the target area of the laser light irradiation.
- the present invention may further include a touch sensor mechanism installed between irradiation opening and the edge of the head in a protruding manner to sense a contact with the target area of the laser light irradiation and the control mechanism which controls the laser light source mechanism to emit the laser light only while the touch sensor mechanism is contacting the target area of the laser light irradiation. Accordingly, since the laser light is not emitted from the laser light source mechanism when the irradiation opening is not near the target of the area of the laser light irradiation i.e.
- the laser light source mechanism of the present invention may include a semiconductor laser which is compact, lightweight, longer lasting and low priced, the longer lasting pain-relief device which is reduced in size, weight and cost as a whole can be achieved.
- the laser light source mechanism of the present invention may be characterized in that the laser light emitted to the painful area has a power within a range of 0.4 W/cm 2 or less, the painful area is irradiated with the laser light within said range of power, making it possible to warm the painful area and to promote blood circulation so as to relieve pain.
- the laser light source mechanism of the present invention may be characterized in that the laser light emitted to the painful area is ranged from 600 nm to 1000 nm in wavelength, the painful area is irradiated with the laser light within said range of wavelength, making it possible to warm the painful area and to promote blood circulation so as to relieve pain.
- FIG. 1 is an appearance diagram of the pain-relief device of the present invention.
- FIG. 2 is a configuration block diagram of the pain-relief device according to a first embodiment of the invention.
- FIG. 3 is a flow chart which illustrates the operation of the pain-relief device according to the first embodiment of the invention.
- FIG. 4 is a configuration block diagram of the pain-relief device according to a second embodiment of the invention.
- FIG. 5 is a flow chart which illustrates the operation of the pain-relief device according to the second embodiment of the invention.
- FIG. 6 is a configuration block diagram of the pain-relief device according to a third embodiment of the invention.
- FIG. 7 is a flow chart which illustrates the operation of the pain-relief device according to the third embodiment of the invention.
- FIG. 8 is a configuration block diagram of the pain-relief device according to the first embodiment of the invention.
- FIG. 9 is a configuration diagram of the conventional pain-relief device in the prior art.
- FIG. 1 is an appearance diagram of the pain-relief device of the present invention.
- FIGS. 1( a ), ( b ) and ( c ) are a front view, a lateral view and a back view respectively.
- FIG. 2 is a configuration block diagram of the pain-relief device according to the first reference example.
- a body of the device is denoted as 18 and a head is denoted as 20 .
- a painful area is denoted by S
- a semiconductor laser which emits relatively low-powered heat-producing laser light
- a laser-driving circuit which drives the semiconductor laser 1
- a small camera which takes a picture of the painful area S by mechanism of image sensors such as CCD (Charge Coupled Device) or CMOS (Complementary Metal Oxide Semiconductor) is denoted by 3
- a camera-signal processing circuit which processes the image taken by the small camera 3 is denoted by 4 .
- the laser light source mechanism is included of the semiconductor laser 1 and the laser-driving circuit 2
- the image-taking mechanism is included of the small camera 3 and the camera-signal processing circuit 4 , respectively.
- an emission button as an emission request mechanism which is switched ON when the laser light is emitted from the semiconductor laser 1 is denoted by 5 ;
- a CPU as a control mechanism which controls the pain-relief device is denoted by 6 ;
- a user-input unit by which information is input to the pain-relief device is denoted by 7 ;
- a memory such as ROM or RAM is denoted by 8 ;
- LCD Liquid Crystal Display
- a control information presenting mechanism which presents information to a user is denoted by 9 ;
- a portable probe is denoted by 10 ;
- an irradiation part of the probe where the laser light irradiated to the painful area S transits therein is denoted by 10 A;
- a display unit as an external image display mechanism is denoted by 11 .
- FIG. 3 is a flow chart which illustrates the operation of the pain-relief device according to the first reference example.
- the CPU 6 loads the program from the memory 8 so that the pain-relief device is activated.
- the CPU 6 sequentially displays the control information of the semiconductor laser 1 such as the power of the laser light or the irradiation time per irradiation on the LCD 9 so that the user can perceive the control information and set the intended control information by mechanism of the user-input unit 7 (Step ST 1 ). Since the control information is displayed on LCD 9 , the user can perceive the control information of the semiconductor laser 1 without difficulty, that the operability of the pain-relief device can be improved.
- the control information is not necessarily displayed on LCD 9 . Instead it is possible to be displayed on other display mechanism, or it is possible to employ a loudspeaker or the like to present the control information to the user by way of artificial voice.
- Step ST 2 the CPU 6 stands by for user input to provide directions for whether or not to check the painful area S.
- Step ST 2 the CPU 6 stands by for user input to provide directions for whether or not to check the painful area S.
- Step ST 5 the CPU 6 controls the small camera 3 to take a picture of the painful area S so that the camera signal is output.
- said camera signal is processed by the camera-signal processing circuit 4 so that the image of the painful area S is displayed on the display unit 11 (Step ST 4 ).
- a conventional pain-relief device requires the user to have expert knowledge of Eastern acupuncture, making it difficult for ordinary people to use it.
- the pain-relief device according to the present invention utilizes the so-called hyper thermic effect of the low-powered laser light so that the heat-producing laser light can be diffused over a certain range to irradiate the painful area without being condensed. Accordingly, as the painful area S is warmed and the blood circulation is improved, it becomes possible to relieve pain of bruise, sprain, shoulder stiffness, backache or the like.
- the irradiated area is wider so that the pain-relief effect can be achieved by only irradiating around the painful area.
- the user can visually realize anomalies within the painful area S such as roughness, reddish area or dryness of skin.
- an enlarged display makes it easier to determine the anomalies.
- the pain-relief device according to the first reference example is included of the small camera 3 and the camera-signal processing circuit 4 so as to take a picture of the painful area S and to display the enlarged image of the taken picture on the display unit 11 . Therefore, the anomalies within the painful area S such as redness, roughness, or dryness of skin can be checked through the steps ST 2 to ST 4 .
- the anomalies within the painful area S can be checked on the visual display unit 11 so that the area being laser-irradiated can be roughly narrowed, it becomes possible for ordinary people who have no expert knowledge of acupuncture to provide a treatment to relieve pain without difficulty.
- the treatment can be applied to not only a human being but also an animal which does not communicate with human languages and whose body is covered with fur so that the painful area S cannot be checked practically.
- the CPU 6 stands by for a user input to switch ON the emission button 5 (step ST 5 ).
- the emission button 5 placed on the grip of the pain-relief device is not switched ON by the user (“No” in step ST 5 )
- the CPU 6 does not activate the laser-driving circuit 2 i.e. the laser light is not emitted from the semiconductor laser 1 (step ST 6 ).
- step ST 5 when the irradiation part 10 A approaches the painful area S and the emission button 5 is switched ON by the user (“Yes” in step ST 5 ), the CPU 6 activates the laser-driving circuit 2 so that the semiconductor laser 1 is controlled to emit the laser light based on the control information set at the step ST 1 (step ST 7 ).
- the laser light is diffused over the certain range to irradiate the painful area S with the hyper thermic effect so that the painful area S can be warmed and the pain in the painful area S can be relieved.
- step ST 6 or the step ST 7 will follow corresponding to ON/OFF of the emission button 5 (step ST 5 ).
- the probe 10 of the pain-relief device shown in FIG. 1 and FIG. 2 is provided with the laser light emission button 5 , it becomes possible to control emission/non-emission of the laser light without difficulty, resulting in the improvement of the operability of the pain-relief device.
- the laser light is not emitted from the semiconductor laser 1 unless the emission button 5 is switched ON by the user, an erroneous irradiation of the laser light can be prevented so as to avoid accidents causing blindness or the like, resulting in the safety enhancement of the pain-relief device.
- the laser light emission is controlled by the CPU 6 when the emission button 5 is switched ON.
- the emission request mechanism is not limited to the button-typed one.
- a slide-type, a lever-type, or a voice-input-type is also possible.
- the method is not limited to controlling the emission with the CPU 6 . It is also possible to control the supply current to the semiconductor laser 1 or to control the attenuation of the laser light emitted from the semiconductor laser 1 .
- the processing that occurs when the CPU 6 activates the small camera 3 when input “Yes” at the step ST 2 in FIG. 3 can be replaced with the following: That is, for example when the control information is set at the step ST 1 , it is possible that the CPU 6 activates the small camera 3 immediately and keeps taking pictures of the painful area S while the pain-relief device is running so that the display unit 11 keeps displaying the taken images thereon.
- the small camera 3 which takes a picture of the painful area S and outputs the camera signal and the camera-signal processing circuit 4 which processes the camera signal output from the small camera 3 are provided at the step ST 3 ;
- the display unit 11 which displays the taken image of the painful area S obtained by processing the camera signal with the camera-signal processing circuit 4 is provided at the step ST 4 ;
- the semiconductor laser 1 which is activated by the laser-driving circuit 2 and emits the heat-producing laser light to irradiate the painful area S is provided at the step ST 7 .
- the anomalies within the painful area S such as redness, roughness, or dryness of skin can be checked and the area being laser-irradiated can be roughly narrowed so that the ordinary people who have no expert knowledge of acupuncture are enabled to provide a treatment to relieve pain without difficulty.
- the CPU 6 which controls the semiconductor laser 1 based on the control information thereof is by mechanism of the laser-driving circuit 2 ; and the LCD 9 which displays the control information thereon for the user is further provided at the step ST 1 . Accordingly, it becomes possible for the user to perceive the control regulation of the laser light irradiating the painful area S, resulting in the improvement of the operability of the pain-relief device.
- the emission button 5 by which the semiconductor laser 1 is made to emit the laser light to irradiate the painful area S when it is switched ON is further provided at the step ST 5 . Accordingly, it becomes possible to control emission/non-emission of the laser light without difficulty, resulting in the improvement of the operability of the pain-relief device. Moreover, since the laser light is not emitted from the semiconductor laser 1 unless the emission button 5 is switched ON, an erroneous irradiation of the laser light can be prevented so as to avoid accidents causing blindness or the like, resulting in the safety enhancement of the pain-relief device.
- the semiconductor laser 1 which emits the heat-producing laser light is further provided. Since the semiconductor laser 1 is compact, lightweight, longer lasting and low priced, the longer lasting pain-relief device which is reduced in size, weight and cost as a whole can be achieved.
- FIG. 4 is a configuration block diagram of the pain-relief device according to the second reference example of the present invention.
- a light source for shooting which illuminates the painful area S is denoted by 12
- the light-source-driving circuit for shooting which activates the light source for shooting 12 is denoted by 13 .
- An illuminating mechanism is included of the light source for shooting 12 and the light-source-driving circuit for shooting 13 .
- FIG. 5 is a flow chart which illustrates the operation of the pain-relief device according to the second reference example.
- the user checks the image of the painful area S displayed on the display unit 11 .
- the user inputs “No” in the user-input unit 7 (“No” at step ST 8 ), and the CPU 6 proceeds to the step ST 5 to function the same way as in the first reference example.
- the user inputs “Yes” in the user-input unit 7 (“Yes” at step ST 8 ), and the CPU 6 activates the light-source-driving circuit for shooting 13 to activate the light source for shooting 12 so that the painful area S is illuminated (step ST 9 ).
- the pain-relief device shown in FIG. 4 is provided with the light source for shooting 12 and the light-source-driving circuit for shooting 13 , and the light supplement is provided when the picture is taken at the step ST 9 . Therefore, it becomes possible to reliably take a picture of the painful area S in bright light by supplementing light thereto even when the light volume of the shooting location is deficient, resulting in the capability of checking anomalies within the painful area S.
- the CPU 6 proceeds to the step ST 5 to function the same way as in the first reference example.
- the light source for shooting 12 and the light-source-driving circuit for shooting 13 which illuminate the painful area S at the step ST 9 are further provided so as to accommodate the case wherein the brightness level of the image of the painful area S displayed on the display unit 11 is deficient at the step ST 4 i.e. when “No” at the step ST 8 . Accordingly, it becomes possible to reliably take a picture of the painful area S in bright light even when a light volume for shooting the painful area S with the small camera 3 is deficient, resulting in the capability of checking anomalies within the painful area S.
- the pain relieving device does not necessarily have to utilize the small camera 3 which requires the light source for shooting 12 and the light-source-driving circuit for shooting 13 . It is possible to utilize an infrared camera which does not require the light source for shooting 12 and the light-source-driving circuit for shooting 13 . In addition, it is also possible to keep lighting the light source for shooting 12 and to keep taking pictures of the painful area S while the pain-relief device is running.
- the following embodiment allows one to enhance the safety of the pain-relief device.
- FIG. 6 is a configuration block diagram of the pain-relief device according to the third reference example.
- 14 denotes one or more touch sensors placed around the irradiation part 10 A, which outputs the sensor signal when it contacts the painful area S.
- 15 denotes a sensor-signal processing circuit which senses a contact between the touch sensor 14 and the painful area S by processing the sensor signal output from the touch sensor 14 .
- a touch sensor mechanism is included of the touch sensor 14 and the sensor-signal processing circuit 15 .
- three touch sensors 14 are provided surrounding the irradiation part 10 A, projecting outward from the irradiation part 10 A to the side of painful area S for about several millimeters in length. That is to say, when the irradiation part 10 A approaches the painful area S to irradiate the painful area S with the laser light, the touch sensor 14 contacts the painful area S.
- the number of the touch sensors 14 is not limited to three. Any given number is possible corresponding to layouts.
- FIG. 7 is a flow chart which illustrates the operation of the pain-relief device according to the third reference example.
- step ST 10 the CPU 6 determines the contact between the touch sensor 14 and the painful area S by mechanism of the sensor-signal processing circuit 15 (step ST 10 ).
- the CPU 6 determines that the irradiation part 10 A is not approaching the painful area S so as not to activate the laser-driving circuit 2 to emit the laser light from the semiconductor laser 1 , and goes into standby mode to prevent erroneous irradiation (“No” at the step ST 10 ⁇ step ST 6 ).
- the CPU 6 determines that the irradiation part 10 A is approaching the painful area S and determines whether or not the emission button 5 is switched ON in the same way as in the first embodiment (step ST 5 ).
- the emission button 5 is not switched ON (“No” at the step ST 5 )
- the CPU 6 does not activate the laser-driving circuit 2 to emit the laser light from the semiconductor laser 1 , and goes into standby mode (“Yes” at the step ST 10 ⁇ “No” at the step ST 5 ⁇ step ST 6 ).
- the CPU 6 activates the laser-driving circuit 2 to emit the laser light from the semiconductor laser 1 (step ST 7 ).
- the laser light irradiates the painful area S passing through the irradiation part 10 A.
- the CPU 6 determines the contact/noncontact between the touch sensor 14 and the painful area S.
- the laser light is not emitted as the irradiation part 10 A does not come close to the painful area S.
- the contact is detected, the laser light is emitted as the irradiation part 10 A comes close to the painful area S under the condition that the emission button 5 is switched ON. Accordingly, it becomes possible to prevent erroneous irradiation so as to avoid accidents causing blindness or the like from occurring.
- the touch sensor 14 placed around the irradiation part 10 A which outputs the sensor signal when it contacts the painful area S at the step ST 10 ; the sensor-signal processing circuit 15 which detects the contact between the touch sensor 14 and the painful area S by processing the sensor signal output from the touch sensor 14 ; and the CPU 6 which activates the laser-driving circuit 2 to emit the laser light from the semiconductor laser 1 under the condition that the emission button 5 is switched ON at the step ST 7 only while the sensor-signal processing circuit 15 is sensing the contact with the painful area S.
- the laser light is not emitted from the semiconductor laser 1 as the touch sensor 14 does not contact the painful area S. Therefore, it becomes possible to prevent erroneous irradiation of the laser light so as to avoid accidents causing blindness or the like, resulting in the safety enhancement of the pain-relief device.
- the following embodiment is possible when the painful area S is irradiated with the laser light emitted from the semiconductor laser 1 .
- FIG. 8 is a configuration block diagram of the pain-relief device according to the first embodiment of the present invention.
- a light diffusion lens as a light diffusion mechanism which has a negative refracting power is denoted by 16 .
- a planoconcave lens which is cut on a given flat surface including a light axis is illustrated as a light diffusion lens 16 .
- the light diffusion lens 16 has a negative refracting power
- the laser light emitted from the semiconductor laser 1 at the step ST 7 in FIG. 3 , FIG. 5 or FIG. 7 is diffused by the light diffusion lens 16 so that the painful area S can be irradiated within a wider range thereof. Therefore, it becomes possible to improve the efficiency of the irradiation and the uniformity of the laser light so that the unevenness of the irradiation can be reduced, resulting in the capability of irradiating the painful area S with the laser light having a milder laser light power.
- the light diffusion lens 16 which has a negative refracting power is further provided and the painful area S is irradiated with the laser light emitted from the semiconductor laser 1 through the light diffusion lens 16 at the step ST 7 , it becomes possible to diffuse the laser light widely to irradiate the painful area S, resulting in the improvement in efficiency of the irradiation. It also becomes possible to irradiate the painful area S with the uniform laser light, producing the reduction of the unevenness of the irradiation. Furthermore, it also becomes possible to irradiate the painful area S with the laser light having a milder laser light power.
- the possible range of the power P of the low-powered heat-producing laser light to irradiate the painful area S is about P ⁇ 0.4 W/cm 2 and the wavelength of the low-powered heat-producing laser light is about 600 nm ⁇ 1000 nm.
Abstract
Description
- The present invention relates to a pain-relief device which applies a laser light to relieve pain in painful areas.
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FIG. 9 is a block diagram of a conventional pain-relief device which is disclosed inPatent Document 1. - In
FIG.9 , a driving circuit is denoted by 200, a power supply unit is denoted by 201, a consecution/pulse drive selecting switch are denoted by 210 and 220, a function generator is denoted by 230, amplifiers are denoted by 231 and 233, constant current supply units are denoted by 240 and 250, a red semiconductor laser is denoted by 260, a green semiconductor laser is denoted by 270, light fiber acupunctures are denoted by 280 a and 280 b, and a painful area or a meridian is denoted by 290. - The
light fiber acupunctures - Next, the operation will be explained.
- First the consecution mode or the pulse mode is selected at the consecution/pulse
drive selecting switches control signals red semiconductor laser 260 or thegreen semiconductor laser 270 produces the consecutive oscillation or the pulse oscillation to emit laser light by the functions of thefunction generator 230, theamplifiers 231 and 233, and the constantcurrent supply units red semiconductor laser 260 or thegreen semiconductor laser 270 irradiates the painful area or themeridian 290 through thelight fiber acupunctures - An existing pain-relief device requires expert knowledge of Eastern acupuncture of a user, such as meridians and acupuncture points. Accordingly, there has been a problem that it is difficult for ordinary people to use it to relieve pain in painful areas.
- Such is the case with the non-invasive pain-relief device such as the one disclosed in Japanese Patent Application Laid-Open No. 2004-329474 (Patent Document 2) as well as the invasive pain-relief device. Laser acupuncture which contributes to effective treatment by collecting laser light into acupuncture points to apply a stimulus by means of a light collecting mechanism or the like also requires expert knowledge of acupuncture of a user, making it difficult for ordinary people to use it.
- In order to solve the problems described above, the present invention allows one to use the pain-relief device without expert knowledge of acupuncture so that ordinary people (i.e. an acupuncture inexpert) can use it to relieve pain in painful areas without difficulty.
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- Japanese Patent Application Laid-Open No. 2010-12268
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- Japanese Patent Application Laid-Open No. 2004-329474
- The pain-relief device according to one embodiment of the present invention includes some mechanisms as follows: the device comprising a body and a head extending from the body; a laser light source mechanism located on the head which emits heat-producing laser light; an irradiation opening which irradiates the laser light emitted from the laser light source mechanism to a predetermined part; an image-taking mechanism located on the head which takes a picture of the area being irradiated with the laser light irradiated from the irradiation opening; an image display mechanism which displays the image of the area taken by said image-taking mechanism; and a planoconcave lens attached to the head and extending over said irradiation opening. The area which has been imaged by said image-taking mechanism is irradiated with said laser light diffused by said planoconcave lens.
- In addition, the pain-relief device may further include a control mechanism which controls the laser light source mechanism based on control-relevant information of the laser light source mechanism, and a control information presenting mechanism which presents the control-relevant information to the user.
- Moreover, the pain-relief device may further include an emission request mechanism which is utilized for the laser light emission from the laser light source mechanism. The laser light source mechanism emits the laser light when the emission request mechanism is used.
- The image-taking mechanism may be further provided with an illuminating mechanism which illuminates the target areas of the laser light irradiation.
- In addition, the pain-relief device further includes a touch sensor mechanism located between the irradiation opening and the edge of the head in a protruding manner to sense a contact with the target area of the laser light irradiation and a control mechanism which controls the laser light source mechanism to emit the laser light only while the touch sensor mechanism is contacting the target area of the laser light irradiation.
- Furthermore, the pain-relief device further includes a light diffusion mechanism which has a negative refracting power and irradiates the painful areas with the laser light emitted from the laser light source mechanism.
- The laser light source mechanism may be a semiconductor laser.
- The light source mechanism may emit the laser light to the painful area within a range of 0.4 W/cm2 or less in power.
- The light source mechanism may emit the laser light to the painful area within a range from 600 nm to 1000 nm in wavelength.
- As described above, since the present invention is provided with the laser light source mechanism, it becomes possible to relieve the pain of a bruise, sprain, shoulder stiffness, backache or the like by irradiating the painful area with the heat-producing laser light so as to warm the painful area and to promote blood circulation. Moreover, due to the image-taking mechanism which takes a picture of the target area of the laser light irradiation and the image display mechanism which displays the image of the target area of the laser light irradiation taken by said image-taking mechanism, the target area of the laser light irradiation imaged by the image-taking mechanism is to be irradiated with the laser light, making it possible to roughly narrow the area being laser-irradiated by checking anomalies within the painful area such as reddening, roughness, and/or dryness of skin or the like. Accordingly, it becomes possible for ordinary people without expert knowledge of acupuncture to provide a treatment to relieve pain without difficulty. Furthermore, due to the planoconcave lens attached to the head and extending over the irradiation opening, it becomes possible to diffuse the laser light widely to irradiate the painful area and the surrounding area, resulting in the improvement in efficiency of the irradiation. It also becomes possible to irradiate the painful area with the uniform laser light, producing the reduction of the unevenness of the irradiation. Moreover, it also becomes possible to irradiate the painful area with the laser light having a mild laser light power.
- As the present invention may further include a control mechanism which controls the laser light source mechanism based on control-relevant information of the laser light source mechanism and a control information presenting mechanism which presents the control-relevant information to the user, the user can get a handle on the operation i.e. the improvement of the operability of the pain-relief device can be achieved, in addition to the efficacy achieved without the control mechanism.
- As the present invention may further include an emission request mechanism which is utilized for the laser light emission from the laser light source mechanism and the laser light source mechanism emits the laser light when the emission request mechanism is used, it becomes possible to control emission/non-emission of the laser light without difficulty, resulting in the improvement of the operability of the pain-relief device. Since the laser light is not emitted unless the emission request mechanism is used, an erroneous irradiation of the laser light can be prevented so as to avoid accidents causing blindness or the like, resulting in the safety enhancement of the pain-relief device.
- Since the image-taking mechanism of the present invention may further include an illuminating mechanism which illuminates the target area of the laser light irradiation, it becomes possible to reliably take a picture in bright light even when there is insufficient light volume, resulting in the capability of checking anomalies within the target area of the laser light irradiation.
- The present invention may further include a touch sensor mechanism installed between irradiation opening and the edge of the head in a protruding manner to sense a contact with the target area of the laser light irradiation and the control mechanism which controls the laser light source mechanism to emit the laser light only while the touch sensor mechanism is contacting the target area of the laser light irradiation. Accordingly, since the laser light is not emitted from the laser light source mechanism when the irradiation opening is not near the target of the area of the laser light irradiation i.e. because there is no contact between the touch sensor mechanism and the target area of the laser light irradiation, it becomes possible to avoid erroneous irradiation of the laser light or accidents causing blindness or the like, resulting in the safety enhancement of the pain-relief device.
- Since the laser light source mechanism of the present invention may include a semiconductor laser which is compact, lightweight, longer lasting and low priced, the longer lasting pain-relief device which is reduced in size, weight and cost as a whole can be achieved.
- As the laser light source mechanism of the present invention may be characterized in that the laser light emitted to the painful area has a power within a range of 0.4 W/cm2 or less, the painful area is irradiated with the laser light within said range of power, making it possible to warm the painful area and to promote blood circulation so as to relieve pain.
- As the laser light source mechanism of the present invention may be characterized in that the laser light emitted to the painful area is ranged from 600 nm to 1000 nm in wavelength, the painful area is irradiated with the laser light within said range of wavelength, making it possible to warm the painful area and to promote blood circulation so as to relieve pain.
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FIG. 1 is an appearance diagram of the pain-relief device of the present invention. -
FIG. 2 is a configuration block diagram of the pain-relief device according to a first embodiment of the invention. -
FIG. 3 is a flow chart which illustrates the operation of the pain-relief device according to the first embodiment of the invention. -
FIG. 4 is a configuration block diagram of the pain-relief device according to a second embodiment of the invention. -
FIG. 5 is a flow chart which illustrates the operation of the pain-relief device according to the second embodiment of the invention. -
FIG. 6 is a configuration block diagram of the pain-relief device according to a third embodiment of the invention. -
FIG. 7 is a flow chart which illustrates the operation of the pain-relief device according to the third embodiment of the invention. -
FIG. 8 is a configuration block diagram of the pain-relief device according to the first embodiment of the invention. -
FIG. 9 is a configuration diagram of the conventional pain-relief device in the prior art. - Hereinafter, embodiments and the like of this invention will be concretely described with reference to the drawings. In each of the drawings, same numerical symbols are used to the same constitutions or corresponding constitutions.
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FIG. 1 is an appearance diagram of the pain-relief device of the present invention.FIGS. 1( a), (b) and (c) are a front view, a lateral view and a back view respectively.FIG. 2 is a configuration block diagram of the pain-relief device according to the first reference example. - In
FIG. 1 andFIG. 2 , a body of the device is denoted as 18 and a head is denoted as 20. A painful area is denoted by S, a semiconductor laser which emits relatively low-powered heat-producing laser light is denoted by 1, a laser-driving circuit which drives thesemiconductor laser 1 is denoted by 2, a small camera which takes a picture of the painful area S by mechanism of image sensors such as CCD (Charge Coupled Device) or CMOS (Complementary Metal Oxide Semiconductor) is denoted by 3, and a camera-signal processing circuit which processes the image taken by thesmall camera 3 is denoted by 4. The laser light source mechanism is included of thesemiconductor laser 1 and the laser-drivingcircuit 2, and the image-taking mechanism is included of thesmall camera 3 and the camera-signal processing circuit 4, respectively. - Further, in
FIG. 1 andFIG. 2 , an emission button as an emission request mechanism which is switched ON when the laser light is emitted from thesemiconductor laser 1 is denoted by 5; a CPU as a control mechanism which controls the pain-relief device is denoted by 6; a user-input unit by which information is input to the pain-relief device is denoted by 7; a memory such as ROM or RAM is denoted by 8; LCD (Liquid Crystal Display) as a control information presenting mechanism which presents information to a user is denoted by 9; a portable probe is denoted by 10; an irradiation part of the probe where the laser light irradiated to the painful area S transits therein is denoted by 10A; and a display unit as an external image display mechanism is denoted by 11. - Next, the operation will be explained.
-
FIG. 3 is a flow chart which illustrates the operation of the pain-relief device according to the first reference example. - In reference to
FIGS. 2 and 3 , when the power button on the user-input unit 7 is switched ON for power activation, theCPU 6 loads the program from thememory 8 so that the pain-relief device is activated. - First the
CPU 6 sequentially displays the control information of thesemiconductor laser 1 such as the power of the laser light or the irradiation time per irradiation on the LCD 9 so that the user can perceive the control information and set the intended control information by mechanism of the user-input unit 7 (Step ST1). Since the control information is displayed on LCD 9, the user can perceive the control information of thesemiconductor laser 1 without difficulty, that the operability of the pain-relief device can be improved. Herein, the control information is not necessarily displayed on LCD 9. Instead it is possible to be displayed on other display mechanism, or it is possible to employ a loudspeaker or the like to present the control information to the user by way of artificial voice. - After the control information is set, the
CPU 6 stands by for user input to provide directions for whether or not to check the painful area S (Step ST2). When the painful area S does not need to be checked and the user operates the user-input unit 7 to input “No” (“No” in Step ST2), it is followed byStep ST 5. On the other hand, when the painful area S need to be checked and the user operates the user-input unit 7 to input “Yes” (“Yes” in Step ST2), theCPU 6 controls thesmall camera 3 to take a picture of the painful area S so that the camera signal is output (Step ST 3). Then, said camera signal is processed by the camera-signal processing circuit 4 so that the image of the painful area S is displayed on the display unit 11 (Step ST4). - As previously indicated, irrespective of the type i.e. invasive or non-invasive, a conventional pain-relief device requires the user to have expert knowledge of Eastern acupuncture, making it difficult for ordinary people to use it. In contrast to this, the pain-relief device according to the present invention utilizes the so-called hyper thermic effect of the low-powered laser light so that the heat-producing laser light can be diffused over a certain range to irradiate the painful area without being condensed. Accordingly, as the painful area S is warmed and the blood circulation is improved, it becomes possible to relieve pain of bruise, sprain, shoulder stiffness, backache or the like. Compared to the conventional pain-relief device, the irradiated area is wider so that the pain-relief effect can be achieved by only irradiating around the painful area.
- In general, the user can visually realize anomalies within the painful area S such as roughness, reddish area or dryness of skin. Particularly an enlarged display makes it easier to determine the anomalies. Thus, the pain-relief device according to the first reference example is included of the
small camera 3 and the camera-signal processing circuit 4 so as to take a picture of the painful area S and to display the enlarged image of the taken picture on thedisplay unit 11. Therefore, the anomalies within the painful area S such as redness, roughness, or dryness of skin can be checked through the steps ST2 to ST4. - As described above, since the anomalies within the painful area S can be checked on the
visual display unit 11 so that the area being laser-irradiated can be roughly narrowed, it becomes possible for ordinary people who have no expert knowledge of acupuncture to provide a treatment to relieve pain without difficulty. In addition, the treatment can be applied to not only a human being but also an animal which does not communicate with human languages and whose body is covered with fur so that the painful area S cannot be checked practically. - Referring again to
FIG. 3 , after the image of the painful area S is displayed on thedisplay unit 11 at step ST4, theCPU 6 stands by for a user input to switch ON the emission button 5 (step ST5). When theemission button 5 placed on the grip of the pain-relief device is not switched ON by the user (“No” in step ST5), theCPU 6 does not activate the laser-drivingcircuit 2 i.e. the laser light is not emitted from the semiconductor laser 1 (step ST6). - On the other hand, when the
irradiation part 10A approaches the painful area S and theemission button 5 is switched ON by the user (“Yes” in step ST5), theCPU 6 activates the laser-drivingcircuit 2 so that thesemiconductor laser 1 is controlled to emit the laser light based on the control information set at the step ST1 (step ST7). As previously indicated, the laser light is diffused over the certain range to irradiate the painful area S with the hyper thermic effect so that the painful area S can be warmed and the pain in the painful area S can be relieved. Thereafter, the step ST6 or the step ST7 will follow corresponding to ON/OFF of the emission button 5 (step ST5). - In this way, as the
probe 10 of the pain-relief device shown inFIG. 1 andFIG. 2 is provided with the laserlight emission button 5, it becomes possible to control emission/non-emission of the laser light without difficulty, resulting in the improvement of the operability of the pain-relief device. - In addition, since the laser light is not emitted from the
semiconductor laser 1 unless theemission button 5 is switched ON by the user, an erroneous irradiation of the laser light can be prevented so as to avoid accidents causing blindness or the like, resulting in the safety enhancement of the pain-relief device. - With this first embodiment, the laser light emission is controlled by the
CPU 6 when theemission button 5 is switched ON. However, the emission request mechanism is not limited to the button-typed one. A slide-type, a lever-type, or a voice-input-type is also possible. In addition, the method is not limited to controlling the emission with theCPU 6. It is also possible to control the supply current to thesemiconductor laser 1 or to control the attenuation of the laser light emitted from thesemiconductor laser 1. - The processing that occurs when the
CPU 6 activates thesmall camera 3 when input “Yes” at the step ST2 inFIG. 3 can be replaced with the following: That is, for example when the control information is set at the step ST1, it is possible that theCPU 6 activates thesmall camera 3 immediately and keeps taking pictures of the painful area S while the pain-relief device is running so that thedisplay unit 11 keeps displaying the taken images thereon. - As described above, the
small camera 3 which takes a picture of the painful area S and outputs the camera signal and the camera-signal processing circuit 4 which processes the camera signal output from thesmall camera 3 are provided at the step ST3; thedisplay unit 11 which displays the taken image of the painful area S obtained by processing the camera signal with the camera-signal processing circuit 4 is provided at the step ST4; and thesemiconductor laser 1 which is activated by the laser-drivingcircuit 2 and emits the heat-producing laser light to irradiate the painful area S is provided at the step ST7. Accordingly, the anomalies within the painful area S such as redness, roughness, or dryness of skin can be checked and the area being laser-irradiated can be roughly narrowed so that the ordinary people who have no expert knowledge of acupuncture are enabled to provide a treatment to relieve pain without difficulty. - In addition, according to the first embodiment of the present invention, the
CPU 6 which controls thesemiconductor laser 1 based on the control information thereof is by mechanism of the laser-drivingcircuit 2; and the LCD 9 which displays the control information thereon for the user is further provided at the step ST1. Accordingly, it becomes possible for the user to perceive the control regulation of the laser light irradiating the painful area S, resulting in the improvement of the operability of the pain-relief device. - In addition, according to the first embodiment of the invention, the
emission button 5 by which thesemiconductor laser 1 is made to emit the laser light to irradiate the painful area S when it is switched ON is further provided at the step ST5. Accordingly, it becomes possible to control emission/non-emission of the laser light without difficulty, resulting in the improvement of the operability of the pain-relief device. Moreover, since the laser light is not emitted from thesemiconductor laser 1 unless theemission button 5 is switched ON, an erroneous irradiation of the laser light can be prevented so as to avoid accidents causing blindness or the like, resulting in the safety enhancement of the pain-relief device. - In addition, according to the first embodiment of the present invention, the
semiconductor laser 1 which emits the heat-producing laser light is further provided. Since thesemiconductor laser 1 is compact, lightweight, longer lasting and low priced, the longer lasting pain-relief device which is reduced in size, weight and cost as a whole can be achieved. - When the image of the painful area S is taken, there is a possibility of causing a shadow or being dark around the shooting location i.e. there is a possibility of causing a deficiency of light volume. The following processing is possible to overcome such situations.
-
FIG. 4 is a configuration block diagram of the pain-relief device according to the second reference example of the present invention. - In
FIG. 1 andFIG. 4 , a light source for shooting which illuminates the painful area S is denoted by 12, and the light-source-driving circuit for shooting which activates the light source for shooting 12 is denoted by 13. An illuminating mechanism is included of the light source for shooting 12 and the light-source-driving circuit for shooting 13. - Next, the operation will be explained.
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FIG. 5 is a flow chart which illustrates the operation of the pain-relief device according to the second reference example. - In FIGS., as well as the embodiment shown in
FIG. 3 , after thesteps 1 to 4 theCPU 6 stands by for a user input with regard to the use of the light source for shooting 12 (step ST8). - The user checks the image of the painful area S displayed on the
display unit 11. When the illumination of the image is sufficient, the user inputs “No” in the user-input unit 7 (“No” at step ST8), and theCPU 6 proceeds to the step ST5 to function the same way as in the first reference example. On the other hand, when the illumination of the image displayed on thedisplay unit 11 is insufficient, the user inputs “Yes” in the user-input unit 7 (“Yes” at step ST8), and theCPU 6 activates the light-source-driving circuit for shooting 13 to activate the light source for shooting 12 so that the painful area S is illuminated (step ST9). - As described above, the pain-relief device shown in
FIG. 4 is provided with the light source for shooting 12 and the light-source-driving circuit for shooting 13, and the light supplement is provided when the picture is taken at the step ST9. Therefore, it becomes possible to reliably take a picture of the painful area S in bright light by supplementing light thereto even when the light volume of the shooting location is deficient, resulting in the capability of checking anomalies within the painful area S. - In this way, the image of the painful area S in bright light can be obtained. And when the user inputs “Yes” in the user-
input unit 7 at the step ST8, theCPU 6 proceeds to the step ST5 to function the same way as in the first reference example. - As above, according to the second reference example, the light source for shooting 12 and the light-source-driving circuit for shooting 13 which illuminate the painful area S at the step ST9 are further provided so as to accommodate the case wherein the brightness level of the image of the painful area S displayed on the
display unit 11 is deficient at the step ST4 i.e. when “No” at the step ST8. Accordingly, it becomes possible to reliably take a picture of the painful area S in bright light even when a light volume for shooting the painful area S with thesmall camera 3 is deficient, resulting in the capability of checking anomalies within the painful area S. - Herein, the pain relieving device does not necessarily have to utilize the
small camera 3 which requires the light source for shooting 12 and the light-source-driving circuit for shooting 13. It is possible to utilize an infrared camera which does not require the light source for shooting 12 and the light-source-driving circuit for shooting 13. In addition, it is also possible to keep lighting the light source for shooting 12 and to keep taking pictures of the painful area S while the pain-relief device is running. - In order to avoid erroneous irradiation of the laser light which may cause blindness or the like, the following embodiment allows one to enhance the safety of the pain-relief device.
-
FIG. 6 is a configuration block diagram of the pain-relief device according to the third reference example. - In
FIG. 1 andFIG. 6 , 14 denotes one or more touch sensors placed around theirradiation part 10A, which outputs the sensor signal when it contacts the painful area S. 15 denotes a sensor-signal processing circuit which senses a contact between thetouch sensor 14 and the painful area S by processing the sensor signal output from thetouch sensor 14. - A touch sensor mechanism is included of the
touch sensor 14 and the sensor-signal processing circuit 15. - In
FIG. 1 , threetouch sensors 14 are provided surrounding theirradiation part 10A, projecting outward from theirradiation part 10A to the side of painful area S for about several millimeters in length. That is to say, when theirradiation part 10A approaches the painful area S to irradiate the painful area S with the laser light, thetouch sensor 14 contacts the painful area S. Herein, the number of thetouch sensors 14 is not limited to three. Any given number is possible corresponding to layouts. - Next, the operation will be explained.
-
FIG. 7 is a flow chart which illustrates the operation of the pain-relief device according to the third reference example. - In
FIG. 7 , in the same way as inFIG. 5 , after the steps ST1 to ST4, ST8 and ST9, theCPU 6 determines the contact between thetouch sensor 14 and the painful area S by mechanism of the sensor-signal processing circuit 15 (step ST10). When no contact has been sensed by the sensor-signal processing circuit 15 (when “No” at the step ST10), theCPU 6 determines that theirradiation part 10A is not approaching the painful area S so as not to activate the laser-drivingcircuit 2 to emit the laser light from thesemiconductor laser 1, and goes into standby mode to prevent erroneous irradiation (“No” at the step ST10˜step ST6). - While in the standby mode, when the
touch sensor 14 contacts the painful area S to output the sensor signal so that the contact is sensed by the sensor-signal processing circuit 15 (“Yes” at the step ST10), theCPU 6 determines that theirradiation part 10A is approaching the painful area S and determines whether or not theemission button 5 is switched ON in the same way as in the first embodiment (step ST5). When theemission button 5 is not switched ON (“No” at the step ST5), theCPU 6 does not activate the laser-drivingcircuit 2 to emit the laser light from thesemiconductor laser 1, and goes into standby mode (“Yes” at the step ST10˜“No” at the step ST5˜step ST6). - On the other hand, when the
touch sensor 14 contacts the painful area S (“Yes” at the step ST10) and theemission button 5 is determined to be switched ON (“Yes” at the step ST5), theCPU 6 activates the laser-drivingcircuit 2 to emit the laser light from the semiconductor laser 1 (step ST7). The laser light irradiates the painful area S passing through theirradiation part 10A. - In this way, the
CPU 6 determines the contact/noncontact between thetouch sensor 14 and the painful area S. When the noncontact is detected, the laser light is not emitted as theirradiation part 10A does not come close to the painful area S. On the other hand, when the contact is detected, the laser light is emitted as theirradiation part 10A comes close to the painful area S under the condition that theemission button 5 is switched ON. Accordingly, it becomes possible to prevent erroneous irradiation so as to avoid accidents causing blindness or the like from occurring. - As described above, the followings are provided according to the third reference example: the
touch sensor 14 placed around theirradiation part 10A which outputs the sensor signal when it contacts the painful area S at the step ST10; the sensor-signal processing circuit 15 which detects the contact between thetouch sensor 14 and the painful area S by processing the sensor signal output from thetouch sensor 14; and theCPU 6 which activates the laser-drivingcircuit 2 to emit the laser light from thesemiconductor laser 1 under the condition that theemission button 5 is switched ON at the step ST7 only while the sensor-signal processing circuit 15 is sensing the contact with the painful area S. Accordingly, when theirradiation part 10A does not come close to the painful area S, the laser light is not emitted from thesemiconductor laser 1 as thetouch sensor 14 does not contact the painful area S. Therefore, it becomes possible to prevent erroneous irradiation of the laser light so as to avoid accidents causing blindness or the like, resulting in the safety enhancement of the pain-relief device. - The following embodiment is possible when the painful area S is irradiated with the laser light emitted from the
semiconductor laser 1. -
FIG. 8 is a configuration block diagram of the pain-relief device according to the first embodiment of the present invention. InFIG. 1 andFIG. 8 , a light diffusion lens as a light diffusion mechanism which has a negative refracting power is denoted by 16. InFIG. 8 , a planoconcave lens which is cut on a given flat surface including a light axis is illustrated as alight diffusion lens 16. - As the
light diffusion lens 16 has a negative refracting power, the laser light emitted from thesemiconductor laser 1 at the step ST7 inFIG. 3 ,FIG. 5 orFIG. 7 is diffused by thelight diffusion lens 16 so that the painful area S can be irradiated within a wider range thereof. Therefore, it becomes possible to improve the efficiency of the irradiation and the uniformity of the laser light so that the unevenness of the irradiation can be reduced, resulting in the capability of irradiating the painful area S with the laser light having a milder laser light power. - As described above, as the
light diffusion lens 16 which has a negative refracting power is further provided and the painful area S is irradiated with the laser light emitted from thesemiconductor laser 1 through thelight diffusion lens 16 at the step ST7, it becomes possible to diffuse the laser light widely to irradiate the painful area S, resulting in the improvement in efficiency of the irradiation. It also becomes possible to irradiate the painful area S with the uniform laser light, producing the reduction of the unevenness of the irradiation. Furthermore, it also becomes possible to irradiate the painful area S with the laser light having a milder laser light power. - Calculated in terms of a planar dimension, the possible range of the power P of the low-powered heat-producing laser light to irradiate the painful area S is about P≦0.4 W/cm2 and the wavelength of the low-powered heat-producing laser light is about 600 nm≦λ≦1000 nm. By irradiating the painful area S with the low-powered laser light by mechanism of the
semiconductor laser 1 and thelight diffusion lens 16 under the condition of described above, it becomes possible to warm the painful area S and to promote blood circulation, resulting in the relief of pain. -
- 1 Semiconductor laser
- 2 Laser-driving circuit
- 3 Small camera
- 4 Camera-signal processing circuit
- 5 Emission button
- 6 CPU
- 7 User-input unit
- 8 Memory
- 9 LCD
- 10 Probe
- 10A Irradiation part
- 11 Display unit
- 12 Light source for shooting
- 13 Light-source-driving circuit for shooting
- 14 Touch sensor
- 15 Sensor-signal processing circuit
- 16 Light diffusion lens
- 18 Body
- 20 Head
Claims (9)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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JP2010-168751 | 2010-07-28 | ||
JP2010168751 | 2010-07-28 | ||
PCT/JP2011/066679 WO2012014799A1 (en) | 2010-07-28 | 2011-07-22 | Pain-relief device |
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US (1) | US20130137992A1 (en) |
EP (1) | EP2599469A4 (en) |
JP (1) | JP5739888B2 (en) |
AU (1) | AU2011283822A1 (en) |
CA (1) | CA2806686A1 (en) |
MX (1) | MX2013001146A (en) |
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US20130041396A1 (en) * | 2011-07-18 | 2013-02-14 | Kenji Ryotokuji | Stimulus method for releasing stress, and stress-free medical treatment method by the stimulus method |
US10420673B2 (en) | 2011-07-18 | 2019-09-24 | Kenji Ryotokuji | Stimulus method for releasing stress, and stress-free medical treatment method by the stimulus method |
US10426971B2 (en) | 2014-06-11 | 2019-10-01 | Koninklijke Philips N.V. | Phototherapy device with pain location input |
CN110662580A (en) * | 2017-05-31 | 2020-01-07 | 帝人制药株式会社 | Light therapy device |
CN112312965A (en) * | 2018-06-29 | 2021-02-02 | 帝人制药株式会社 | Chair-type phototherapy apparatus |
US11173273B2 (en) | 2016-03-23 | 2021-11-16 | Kenji Ryotokuji | Stimulation application apparatus |
US11766351B2 (en) | 2011-07-18 | 2023-09-26 | Kenji Ryotokuji | Stimulus method for promoting secretion of growth hormone |
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KR102238015B1 (en) * | 2019-02-27 | 2021-04-12 | 이동채 | Skin and pain treatment apparatus |
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US20130041396A1 (en) * | 2011-07-18 | 2013-02-14 | Kenji Ryotokuji | Stimulus method for releasing stress, and stress-free medical treatment method by the stimulus method |
US9358180B2 (en) * | 2011-07-18 | 2016-06-07 | Kenji Ryotokuji | Stimulus method for releasing stress, and stress-free medical treatment method by the stimulus method |
US10420673B2 (en) | 2011-07-18 | 2019-09-24 | Kenji Ryotokuji | Stimulus method for releasing stress, and stress-free medical treatment method by the stimulus method |
US11766351B2 (en) | 2011-07-18 | 2023-09-26 | Kenji Ryotokuji | Stimulus method for promoting secretion of growth hormone |
US10426971B2 (en) | 2014-06-11 | 2019-10-01 | Koninklijke Philips N.V. | Phototherapy device with pain location input |
US11173273B2 (en) | 2016-03-23 | 2021-11-16 | Kenji Ryotokuji | Stimulation application apparatus |
CN110662580A (en) * | 2017-05-31 | 2020-01-07 | 帝人制药株式会社 | Light therapy device |
US11235170B2 (en) * | 2017-05-31 | 2022-02-01 | Teijin Pharma Limited | Phototherapeutic apparatus |
CN112312965A (en) * | 2018-06-29 | 2021-02-02 | 帝人制药株式会社 | Chair-type phototherapy apparatus |
KR20210018492A (en) * | 2018-06-29 | 2021-02-17 | 데이진 화-마 가부시키가이샤 | Chair type phototherapy device |
US11571588B2 (en) * | 2018-06-29 | 2023-02-07 | Teijin Pharma Limited | Chair-type phototherapy device |
KR102597733B1 (en) * | 2018-06-29 | 2023-11-02 | 데이진 화-마 가부시키가이샤 | Chair-type light irradiation device |
Also Published As
Publication number | Publication date |
---|---|
CA2806686A1 (en) | 2012-02-02 |
WO2012014799A1 (en) | 2012-02-02 |
JPWO2012014799A1 (en) | 2013-09-12 |
JP5739888B2 (en) | 2015-06-24 |
MX2013001146A (en) | 2013-04-29 |
EP2599469A4 (en) | 2013-12-25 |
EP2599469A1 (en) | 2013-06-05 |
AU2011283822A1 (en) | 2013-03-07 |
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